ASTROSAT CZTI

Data Quality Report

Orbit 28292

Creation date: 2024-06-27T19:50:07.399677
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_102T06_9000004078_28292cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28292cztM0_level2_quad_clean.evt
Size (bytes)1,088,933,760151,611,840
Size1.0 GB 144.6 MB
Events in quadrant A5,855,464989,155
Events in quadrant B11,206,220878,238
Events in quadrant C5,614,124960,340
Events in quadrant D9,483,084923,801

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253120
B0411790
C0245780
D0365770

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A121281070.882256%
B12129237619.589414%
C121291431.178992%
D121296745.556930%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 13493 12128 27 27 0.20% 0.22%
B 13494 12130 2099 2099 15.56% 17.30%
C 13494 12129 0 0 0.00% 0.00%
D 13494 12130 516 516 3.82% 4.25%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 174 294755 1018.67 1436 1403 288.0
A 7 16 21803 70.84 1436 1403 288.0
A 13 254 20519 66.38 1436 1403 288.0
B 10 245 5949985 23776.76 1319 1284 250.2
B 4 200 43920 170.41 1319 1284 250.2
B 12 111 31155 119.39 1319 1284 250.2
C 14 238 222804 686.41 1373 1376 322.6
C 3 233 31801 94.32 1373 1376 322.6
C 13 61 9623 25.57 1373 1376 322.6
D 1 52 2502240 7678.51 1364 1324 325.7
D 8 195 911489 2794.46 1364 1324 325.7
D 12 250 395709 1210.87 1364 1324 325.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter